William orr



(No Model.) 2 Sheets-Sheet l.

W. ORR] FIRBPROOF CONSTRUCTION.

No. 582,308. Patented May 11, 1897.

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(No Model.) Sheets--Sheet 2.

W. ORR. PIRBPROOF GONSTRUGTION.

No. 582,308. Patept-ed May 11, 1897.

lllllllllllliflllll? 1 :41,. qr. I A A NlTE TATZES lVILLlAM ORR, OF TRENTON, NEWV JERSEY, ASSIG-NOR TO THE NEXV JERSEY YVIRE CLOTH COMPANY, OF SAME PLACE.

FIREPROOF CONSTRUCTION.

SPECIFICATION forming part of Letters Patent No.'582,308, dated May 11, 1897.

Application filed January 1, 1896. Serial No. 574,312. (No model.)

To all whom it may concern: in section, of a portion of the construction Be it known that I, WILLIAM ORR, a citizen complete without the concrete. Fig. at is a of the United States, residing at Trenton, detail section on the line 4.- of Fig. 1. Fig. 5 county of Mercer, and State of New Jersey, is a detail section similar to Fig. 2, showing a 5 have invented certain new and useful Imslight modification. Figs. 6 to 8 show a modiprovements in Fireproof Constructions, fully fied construction, which may be found quite described and represented in the following efficient, in which the arch may be supported specification and the accompanying drawwithless weightof metal than in the construc- 6o ings, forming a part of the same. tion shown in.% Figs. 1 to 5. Fig. 6 is a View 10 The object of the present invention is to similar'to Fig.1. Fig. '7 is a horizontal secprovide an improved fireproof construction tion taken through the I-beams above the adapted especially for use as a combined floor arch and with the joists partly broken away, and ceiling construction, the especial object the plastic material and lathing being omitof theinvention being to provide an improved ted. Fig.8 is a vertical cross-section on the I; construction employing metal-plate joists and line 8 of Fig. 6.

metallic lathing to support a floor of concrete Referring to said drawings, A are the flooror other similar plastic material. beams, which are shown as of the common I I aim particularly at the formation of a conform, and B the floor-joists, extending bestruction in which it is necessary only that tween. the beams and formed of compara- 20 the floor-joists be stiff enough on their depth tively thin metal plates. These joists in the to carry the required load, the setting of the construction shown in Figs. 1 to 5 are formed concrete or other plastic material in the of quite wide plates of metal provided at meshes of the lathing securing an anchorage opposite ends with feet 10, which may be which prevents thrust against the joists, formed on but are preferably riveted or othz 5 making it unnecessary to provide the heavy erwise secured to the plates and rest upon flanges usually employed to give the joists the lower flanges of the beams A, so as to side stiffness. support the joists, and the joists are pref- \Vhile, however, the invention is especially erably held in position and partially supadapted for use in fireproof floor and ceiling ported by means of metal hangers 11, which 0 constructions and the invention consists in depend from the tops of the beams and expart of features therein, the invention intend beneath the lower edges of the joists, eludes also certain features of construction these hangers in the construction shown beand combinations of parts which may be used ing secured to the beams by clips 1, hooked in other concrete and similar constructions. over the top edges of the beams and pro- 35 As a full understanding of the invention vided with openings through which the hangcan best be given by an illustration and deers 11 are passed and adjustably secured untailed description of constructions embodyder the proper tension by means of nuts, as' ing the same, such a description will now be shown, or in any other suitable manner. given in connection with the accompanying While the joists are preferably supported 40 drawings, forming a part of this specification both by the lower flanges of the beams A and and showing constructions of the preferred by the tops of the beams through hangers, it forms, and the features forming the invention will be understood that either of these means will then be specifically pointed out in the may be found sufficient in some cases and claims. used without the other. The construction is 45 In the drawings, Figure 1 is a section of a illustrated as applied'in connection with the complete floor and ceiling construction, the common I floor-beams, but it will be undersection being taken transversely to the floorstood that other forms of beams may be used beams and the floor and ceiling concrete beand the joists supported'thereon by hangers 10o ing partially broken away to show the conor in any other suitable manner, and that 50 struction. Fig. 2isacross-section on the line the joists may be supported by. the walls of 2 of Fig. 1, showing the concrete in part of a building instead of by floor or other beams. the construction. Fig.3is aplan View, partly The joists B form the supports for the floor, which is formed of a body of concrete or other similar plastic material held by me tallic lathing carried by the joists, and in the preferred construction shown, and which in itself forms a part of the invention, the floor-concrete is so supported as to form an arched floor and a ceiling combined therewith which is supported by the joists at some dis tance below the floor, so as to form arched air-spaces between the floor and ceiling. In this construction the lathing is supported as follows: Upon opposite sides of the joists B and curved so as to form an arch extending between the beams A are supports 12, which may be form edintegral with the joists B, but when wide joists are used, as in the construction 110w being described, preferably consist of angle-plates bolted to the joists, these angle-plates being shown as offset for a purpose presently to be described. The flanges of these angle-plates are provided with perforations 2 at intervals throughout their entire length, and through these perforations are passed the hooked ends of rods 13, which support the lathing a, these rods 13 being either woven into the lathing, as shown in the drawings, or having the lathing sec ured thereto in any suitable manner. Upon the lathinga, which may be of any suitable form, either woven wire, as shown, or perforated sheet metal, is applied the body of floor-concrete C, which fills the space above the supports 12 to the tops of the joists and beams, and upon which a board floor may be placed, if desired.

The construction thus far described is complete in case a separate ceiling is not to be made, but one of the objects of the invention is to provide a floor and ceiling construction with air-spaces between the two, and the ceiling construction will now be described.

In the construction shown in Figs. 1 to 4 the angleplates forming the supports 12 are oifset, as previously described, and from the rivets by which the offset plates 12 are secured to the joists B, and inside the plates, are hung supports 14, which are hooked over the rivets and about supporting-rods 15, which extend along beneath the lower edges of the joists B, these rods being woven into the ceiling-lathing b, as shown in these figures, although they may be separate from the lathin g and the latter secured thereto by lacing or in any other suitable manner. The flanges of the beams A may be covered in any suitable manner, but, as shown, supporting-rods 16 are hooked into perforations in the joists B on opposite sides of the beams A and pass around the lower flanges of the latter, and

the joists B especially for the purpose of receiving the hooked hangers l4 inside the plates, and that if the ceiling be otherwise supported the supports 12 may be formed on or secured directly against the joists B.

As shown in Figs. 1 to 4, the rods 13 and 15 are corrugated transversely at short intervals throughout their length, so as to secure the tensile strength of the rod in addition to the bending resistance, and the rods may be formed therewith or secured thereto in any suitable manner, the rods and lathing then being embedded in the concrete or similar plastic material. These corrugated rods may be formed very simply and cheaply by corrugating-rolls or other similar convenient devices in the formation of the rods or lathing containing the rods.

In Fig. 5 is shown a slightly-modified construction in which the arched supports 12 are flat pieces of metal secured to and offset from the joists B and the rods 13 are hooked over the edges of the plates between them and the joists B instead of through perforations in flanges on the plates. In this construction also the rods 15, which support the ceilinglathing I), are passed through openings provided in the lower edges of the joists B and supported thereby instead of by separate hangers 14, as in the construction shown in Figs. 1 to 4. In this construction also the rods 13 15, instead of being woven into the lathing a b, as in the construction shown in Figs. 1 to 4, are separate therefrom and the lathin g secured thereto by lacing or otherwise. The rods 13 15, moreover,are shown as straight instead of the preferred corrugated form previously described, as it is obvious that straight rods may be used in constructions embodying the general features of the invention.

In the constructions thus far described the thrust of the arch formed by the supports 12 and the lathing and concrete carried thereby is borne by the wide plates forming the joists B and by the beams A.

In Figs. 6 to 8 I have shown a construction in which the thrust of the arch may be supported with less weight of metal than in the constructions shown in Figs. 1 to 5 and by which also the thrust of the arch may be supported practically without thrust on the beams A or other supports of the joists, which latter feature is especially important where the joists are supported by the walls of abuilding. In the construction shown in these figures the webs of the joists B are quite narrow and the joists B and supports 12 are preferably formed integral and consist of arched T- plates, as shown, these beams being inverted, so that the cross-bar is at the bottom of the web and forms the flanges constituting the supports 12. The rods 13, lathing a, and concrete O are supported in this construction by these supports 12, as in the construction previously described, except that the rods 13 and lathing thereon are shown as simply laid upon the tops of the flan ges,which construction will be found efficient with stiff lathing or rods, especially where the joists are placed quite close together, as shown. The flanges forming the supports, however, may be perforated and the hooked rods used as in the other constructions, if preferred, and the hooked-rod construction is important in some cases and in connection with the arched supports forms a specific feature of the invention.

The thrust of the arch is supported by the.

tensile member E, which is shown as formed of a metal bar or plate resting upon the lower flanges of the I-beams, although it will be understood that it may be supported in any other suitable manner, either on the I-beams or with beams of other forms or on the walls. At its opposite ends each of the tensile members E is provided with a vertical flange 3, which receives the ends of the compression members B, so that the compression of the arch is supported by these flanges, and thus resisted by the tensile strength of the bars E. The compression and tensile members B E may be secured together by riveting or otherwise instead of using the flanged ends, but the construction shown will be found simple and eflicient. Between the compression and tensile members B E are preferably placed at intervals supports 17, these intermediate supports being riveted, clamped, or otherwise attached to both members. It will be understood, however, that these intermediate supports will not be required in all constructions. The bars E support the rods 15 and lathing b of the ceiling, the rods 15 being secured to the bars in any suitable manner. As shown, the rods extend along beneath the bars and the ends of the rods are hooked about them, so as to be supported thereby.

It will be obvious that the joists shown in Figs. 6 to 8, having the webs and flanges formin g the supports 12 formed integral and consisting of T-plates with a, narrow web, may be used without the tensile members E in constructions in which no ceiling is required or with the ceiling supported in any other suitable manner, but it is obvious that in such constructions the thrust of the arch will be supported by the I-beams, and such a construction is not so well adapted for heavy floors, and especially where the joists are sup-.

ported by the walls of the building.

It will be understood thatmany other modifications may be made in the constructions shown without departing from the invention,

and I am not to be limited to the exact form or arrangement of parts illustrated.

What is claimed is- 1. The combination of joists formed of plates supported on their edges, whereby the pressure of material supported by the plates is 'exerted edgewise of the plates, metallic lathing between and supported by said joists and curved longitudinally of the joists to form horizontal arches, and a filling of concrete or similar plastic material applied to said lathing, substantially as described.

2. The combination of joists formed of plates supported on their edges, whereby the pressure of material supported by the plates is exerted edgewise of the plates, arched supports on the opposite side faces of said joists, metallic lathing carried by said supports and curved longitudinally of the joists to form horizontal arches, and a filling of concrete or similar plastic material applied to said lathing, substantially as described.

3. The combination of joists formed of plates supported on their edges, whereby the pressure of material supported by said plates is exerted edgewise of the plates, metallic lathing between and supported by joists and curved longitudinally of the joists to form horizontal arches, a filling of concrete or similar plastic material applied to said lathing, and a ceiling of metallic lathing and plastic material below said arches, substantially as described.

4. The combination of joists, arched supports on said joists, rods extending transversely to said joists and carried by said supports, metallic lathing on said rods curved longitudinally of the joists to form arches, and a filling of concrete or similar plastic material applied to said lathin g, substantially as described.

5. The combination of joists, arched supports on said joists, rods extending transversely to said joists and carried by said supports, metallic lathing on said rods curved longitudinally of the joists to form arches, a filling of concrete or similar plastic material applied to said lathing, rods supported by said joists and extending transversely to the joists below the arches, and a ceiling of metallic lathing and plastic material supported by said rods, substantially as described.

6. The combination with beams, of metal joists B supported by said beams and formed of metal plates. supported on their edges, whereby the pressure of material supported by said plates is exerted edgewise of the plates, arched supports 12 on said joists, and arched metallic lathing and plastic material carried by said supports, substantially as described.

7. The combination with beams, of metal joists B supported by said beams and formed of metal plates supported on their edges, whereby the pressure of material supported by said plates is exerted edgewise of the plates, arched supports 12 on said joists, arched metallic lathing and plastic material carried by said supports, and a ceiling of metallic lathing and plastic material, substantially as described.

S. The combination with beams, of metal joists B supported by said beams, arched supports 12 on said joists, rods 13 carried by said supports, and metallic lathing and plastic material carried by said rods 13, substantially as described.

9. The combination with beams, of metal joists B supported by said beams, arched supports 12 on said joists, rods 13 carried by said supports, cei1ing-rods 15, and metallic lathing and plastic material carried by said rods 13, 15, substantially as described.

10. The combination With beams, of metal joists 13 supported by said beams, arched supports 12 on said joists, rods 13 carried by said supports, rods 15 supported by said joists at their bottom edges, and metallic lathing and plastic material carried by said rods 13, 15, substantially as described.

11. The combination with the flanged beams A, of the metal joists B extendingfrom beam to beam, flanged supports 10 secured to said joists and resting on the flanges of said beams, and hangers 11 for the joists extending over the tops of the beams, substantially as described.

12. A joist formed of a plate l3 provided with arched flanges extendin g transversely to the plate, and perforated at suitable intervals for the attachment of metallic lathing or lathing-supporting rods, substantially as described.

13. A joist formed of a plate 13 provided with arched perforated flanges extending transversely to the plate, in combination with rods hooked to said flanges and metallic lathing supported by said rods, substantially as described.

14. A joist formed of a plate 13 provided with arched supports and having perforations at its lower edge in combination with floorrods on said supports, ceiling-rods extending through the perforations, and lathing supported bysaid rods,substantially as described.

15. A joist formed of a plate B provided with supports oifset to leave a space between the supports and the face of the plate, substantially as described.

16. A joist formed of a plate B provided with supports offset to leave a space between the supports and the face of the plate and having perforations at its lower edge, substantially as described.

17. A joist formed of a metal plate 13 provided with arched supports on the face of the plate, said plate projecting below the supports and having perforations arranged in substantially a straight line at its lower edge, substantially as described.

In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

WM. ORR.

\Vit11esses R. L. VANDEGRIFT, E. W. ARNOLD. 

